Means for placing timber in position for sawing.



A. J. TENOW & C. E. ANDERSSON.

MEANS FOR. PLACING TIMBER IN POSITION FOR SAWING.

APPLICATION FILED APR. 3. 1911.

Patented Nov. 5, 1912.

3 SHEETS-SHEET ll lupin/156.920

M a W W J ADOLF JULIUS TENOW AND CARL ERIK ANDERSSON, 0F STOGKHOLM,SWEDEN, ASSTGN- OBS T0 3'. & C. G. BOLINDERS MEKANISKA VERKTADSAKTIEBOLAG, OF STOCKHOLM,

SWEDEN.

MEANS FOR PLACING TIMBER IN POSITION FOR SAWING.

Specification of Letters Patent.

Patented Nov. 5, 19112.

Application filed April 8, 1911. Serial No. 618,603.

To all whom it may concern:

Be it known that we, ADoLr JULIUS TENOW and can ERIK ANDERSSON, subjectsof the King of Sweden, residing at Stock holm, in the Kingdom of Sweden,have invented new and useful Improvements in Means for Placing Timber inPosition for Sawing, of which the following is a specification,reference being had to the drawings accompanying and forming a parthereof.

This invention relates to means for placing timber in position forsawing.

The object of the invention is to enable a single workmanto easilyadjust the timber vertically and laterally so as to cause it to enterbetween the feedand pressurerollers of the sawing machine in a positionsuitable for sawing.

The invent-ion consists, chiefly, in this that the timber-conveyingmeans used for' feeding the timber toward the sawing ma:

chine is placed just in line with the track in front of the saw-bladesand supplies the timber directly to a support movable along the saidtrack, said support suit-ably consisting of a roller mounted on acarriage running on the said track. Placed in front ofthe saidsupporting roller, counted in the direction of movement of the timber,preferably on the carriage carrying the said roller, is a furthersupport. When the timber bearing on the supporting roller has beenfedforward by the conveyer into a position in which the frontend of thetimber weighs down about its fulcrum on the roller, the timber will belying on the roller and the support in front thereof and may betransported by the carriage toward the saw-blades. The supporting rolleris adjustable both vertically and laterally and preferably rufiied orotherwise so arranged that the timber lies steadily thereon. By

porting roller, while in the position of the timber shown in full linesthe forward or top-end of the timber has Weighed down so as to cause therear or butt-end of the timber to leave the conveyer. Fig. 2 shows thesame parts with the timber raised and adjusted in position for sawing.Fig. 3 is a plan view of the same parts. Fig. 4 is a rear view, on anenlarged scale, of a modified contrivance for raising the supportingroller and adjusting it laterally. Fig. 5 is a plan-view of the sameparts. Fig. 6 is a side elevation and partial section thereof. Fig. 7shows a detail.

Referring first to .Figs. 1-3, the truck or carriage 1 is movable onrails toward and away from the franle 2 of the sawing machine. Attachedto'the frame of the said carriage are two rails 4, and movable there-1n, in a direction at right angles to the track, is a traversingcarriage 3. J ournaled in the said traversing carriage is a roller 5,preferably in the shape of a double cone grooved in the manner shown inFig. 4. The pivot pins of the roller 5 are supported by one or more arms6 pivoted at one end to the frame 3. Said pivot pins are also connectedby links 7 to a lever 8 adapted to turn about a fixed point 9.

The timber supplied by the conveyer 10 enters with its forwardend on theroller 5 and is fed forward on the same until the center of gravity ofthe timber is somewhat in frontof the roller. The top-end of the rollerthen weighs down so that the timber will bear on a fui'ther support 12placed in front of the roller 5. When the timber is in this position,the carriage 1 is moved forward by hand or otherwise. During thismovement the top-end of the timber meets a support, preferably a roller13 of such a shape and otherwise so arranged as to automatically engagethe timber and guide it into a predetermined position in front of theset of saws, preferably just before the middle plane thereof. When thetimber has thus been firmly supported at its forward end, the roller 5is adjusted vertically by means of the lever 8 so that the timber willtake up a substantially horizontal position. Thereupon the traversingcarriage 3 is adjusted so ,as to cause the timber to take up the properosit-ion for sawing. When the timber has een thus placed in position,the carriage 1 is moved forward by hand or otherwise so that the timberis caused to enter between the feedand pressure-rollers 14, 15 of thesawing machine.

In the modified form of the roller-supporting means shown in Figs. 47,the raming of the timber is performed automatically. The axle18 of theroller 5 is journaled in two arms 16 adapted to swing about a shaft 17The axle 18 carries two cog-wheels 19 and 20 cotiperating withcorrespondingcog-wheels 21 and 22 on the shaft 17. The wheel 21 may belooked in position by means of a pawl 23 (Fig. 6) pivotally attached tothe frame 3. The pawl 23 may be disengaged from the wheel 21 by means ofa block 24 attached to an arm 25 adapted to swing about the shaft 17.

' When the arm is turned, the block 24 acts on the pawl 23 so as todisengage the wheel. The axle 18 is further connected by means of a link26- to a lever 27 adapted to turn about a pivot pin 28 attached to theframe 3. The leverl 27 is provided with a friction block 29 adapted toengage a part 30 which is concentric to the pivot pin 28. The roller 5is divided at the middle into two conical parts 5 and 5' the latter ofwhich is firmly connected to the cog-wheel 20. The cog wheel 22 engagingthe same also engages a pinion 31 of such a length as to maintain thesaid engagement, when the frame 3 is moved laterally. The pinion 31further engages a cog-wheel 32 attached to a shaft 33 carrying a doublepulley 34. This pulley cotiperates with two lines or ropes 35, 36running in opposite directions. Placed at the side of the lines or ropesopposite the pulley 34 are two rolls 37, 38 each corresponding to onerope, said rolls being journaled on a cross-piece 39 attached to an axleor shaft 40 and adapted to be swung in opposite directions by means of alever 41 attached to the said shaft. \Vhen the lever 41 is swung in oneor the other direct-ion, one of the rollers 37, 38 is pressed onto itsline or rope 35 or 36, which is thereby pressed against the pulley 34 soas to rotate the same. If the lever 41 is swung in the oppositedirection, the line or rope movin in the opposite direction will bepressed against the pulley 34 which is thereby caused to rotate in theopposite direction. The rotary movement of the pulley 34 is transmittedby the cog-wheel 32, the pinion 31, the cog-wheel 22 and the cog-wheel20 to the part 5' of the timber-supporting roller. As shown in Figs. 4and 5, this part of the roller is provided with oblique threads acting,during the rotation of the said part of the roller, like a screw-wheelon the timber so as to turn the same in one or the other direction intoposition for sawing.

The contrivance last described works as follows: The timber placed inthe manner described on the rollers 5 and 13 is moved toward thesaw-blades, as shown in Fig. 2, and thereupon turned in the mannerdescribed by swinging the lever 41 forward or backward in thelongitudinal direction of machine. When the timber has been firmlyengaged by the rollers 14 and 15 so as to be fed' forward by the same,the workman seizes the lever 27 and pulls it backward, 2'. e. in'thedirection of the arrow shownin Fig.

.6. The carriage-is thereby checked, and as .the timber is .movedforwardat a constant speed, it acts to turn the roller 5 with the pinion 19 inthe direction of the arrow (Fig.

6), by which the pinion 19 is caused to climb combination of a set ofsaws, a track extending infront of the said saws, a carriage movable onthe said track, a timber-supporting roller mounted on the said carriage,and a timber conveyer placed in line with the said track, substantiallyas and for the purpose set forth.

2. In a machine for sawing timber, the" combination of a set of saws, atrack extending in front of the said saws, a carriage movable on thesaid track, a timbersupporting roller 'adjustably mounted on the saidcarriage, and a timber conveyer placed in line with the said track,substantially as and for the purpose set forth.

3. In a machine for sawing timber, the combination of a set of saws, atrack extending in front of the said saws, a carriage movable on thesaid track, a vertically and laterally adjustableroller mounted on thesaid carriage, and a timber conveyer placed in line with the said track,substantially as and for the purpose set forth.

4. In a machine for sawing timber, the combination of a set of saws,'atrack extending in front of the said saws, a carriage movable on thesaid track, a traverser movable on the said carriage, in a direction atritght angles to the direction of movement 0 the same, atimber-supporting roller mounted on the said traverser, and a timberconveyer placed in line with the said track, iubsltlantially as and forthe purpose set ort 5. In a machine for sawing timber, the combinationof a set of saws, atrack extending in front of the said saws,- a car.-riage movable on the said track, a traverser movable on the saidcarriage, in a direction at right angles to the direction of movement ofthe same, a vertically adjustable roller mounted on the said traverser,and a timber conveyer placed inline with the said track, substantiallyas and for the purpose set forth.

6. In a machine forsawing timber, the combination of a set of saws, atrack extending in front of the said saws, a carriage movable on thesaid track,a traverser movable on the said carriage, in a direction atright angles to the direction of movement of the same, a shaft carriedby the said traverser, a gear-wheel loosely mounted on the said shaft,means for locking the said gear-wheel in. position, arms adapted toswing about the said shaft, a roller journaled in ;the said arms,,and agear-wheel connected to the said roller, said latter gearwheel engagingthe former, substantially as and for the purpose set forth.

7. In a machine for sawing timber, the combination of a set of saws, atrack extending in front of the said saws, a carriage movable on thesaid track, a timber-supporting roller mounted on the said carriage,said roller consisting of two separate conical parts with their topsfacing each other, one of said parts being provided with threads adaptedto engage the timber, and means for turning the said part of the saidroller in either direction, substantially as and for the purpose setforth.

8. In a machine for sawing timber, 'the combination of a set of saws, atrack extending in front of the said saws, a carriage movable on thesaid track, a timber-supportsaid roller consisting of two separateconical parts with their tops facing each other, one of said parts beingprovided with threads adapted to engage-the timber, a pulley for turningthe said part of the said roller in either direction, connectionsbetween the said pulley and the said roller part, movable lines adaptedto be pressed against the said pulley for rotating the same in eitherdirection, and means for pressing either line against the said pulley,substantially as and for the purpose set forth.

In testimony whereof we subscribe our names in the presence of twosubscribing witnesses.

ADOLF JULIUS TENOW. I CARL ERIK ANDERSSON.

Witnesses AUG. S6RENSEN, Gno. NIEHKURL.

. ing roller mounted on the said carriage,

